Penlon AV-S, Service Manual, Page: 10 / 94

24. The High and Low Airway Pressure
Alarms are important for patient care.
It is important that the sensor is
properly located in the expiratory limb
of the circuit - refer to section 5.1.10.
25.
The patient must be continuously
attended and monitored when
Advanced Breathing Modes are in use.
User Maintenance
Control Unit
26. Opening the control unit by
unauthorised personnel automatically
voids all warranties and specifications.
Prevention of tampering with the
control unit is exclusively the user’s
responsibility. If the control unit seal is
broken, the manufacturer assumes no
liability for any malfunction or failure of
the ventilator.
27. For continued protection against fire
hazards, replace the two fuses only
with the identical type and rating of
fuse.
See section 4 for fuse rating.
28. If the internal battery is fully
discharged, the ventilator will not
function in the event of mains power
failure. The battery must be recharged
before the ventilator is used clinically,
otherwise backup cannot be
guaranteed.
See Appendix for battery maintenance.
See also CAUTION No. 7.
Used or defective batteries must be
disposed of according to hospital,
local, state, and federal regulations.
29. No oil, grease or other flammable
lubricant or sealant must be used on
any part of the ventilator in close
proximity to medical gas distribution
components.
There is a risk of fire or explosion.
30. Exterior panels must not be removed
by unauthorised personnel and the
apparatus must not be operated with
such panels missing.
There is a possible electric shock
hazard.
31.
Check that the cable between the
control unit and remote display screen
unit is connected before use.
Always use a cable type recommended
by the manufacturer.
Bellows Assembly
32. The valve seat on the patient gas
exhalation diaphragm valve in the base
of the bellows assembly must be
cleaned regularly - see section 6.2.
Failure to keep the valve seat clean
could result in the diaphragm sticking,
thus preventing exhalation.
Great care must be taken not to
damage the precision surface of the
valve seat on the patient gas exhalation
diaphragm valve in the base of the
bellows assembly.
Never use any hard object or abrasive
detergent to clean it; use only a soft
cloth.
If the valve seat is damaged, the valve
will leak and may cause serious
ventilator malfunction.
WARNINGS AND CAUTIONS
4